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SPEAR320 Datasheet(PDF) 61 Page - STMicroelectronics

Part # SPEAR320
Description  Embedded MPU with ARM926 core, optimized for factory automation and consumer applications
PDF  73 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SPEAR320 Datasheet(HTML) 61 Page - STMicroelectronics

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SPEAr320
Timing requirements
Doc ID 16755 Rev 5
61/73
7.9.3
MDIO timing specifications
Figure 21.
MDC waveforms
Note:
When MDIO is used as output the data are launched on the falling edge of the clock as
shown in Figure 21.
7.10
SMII Ethernet MAC timing characteristics
Figure 22.
SMII input/output timing waveform
Table 42.
MDC timings
Symbol
Description
Min
Max
Unit
tCK
MDC clock
614.4
614.4
ns
tD
Falling edge of MDC to MDIO output delay
204
0.64
tS
Setup time requirement for MDIO input
9.6
tH
Hold time requirement for MDIO input
-6.6
TD
MDC
tCK
tH
tS
MDIO(INPUT)
MDIO (OUTPUT)
SMII_TX
tD
SMII_CLKIN
tCK
Th
SMII_RX
tS



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